mm: Fix MREMAP_DONTUNMAP accounting on VMA merge

[mirror_ubuntu-jammy-kernel.git] / mm / internal.h

diff --git a/mm/internal.h b/mm/internal.h
index 2d58ae15a9580cee1299635fe897c81f8768bf75..b5634e78f01dc6aa49b0c6926ba444b69c5fcadc 100644 (file)
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -180,6 +180,8 @@ static inline struct page *pageblock_pfn_to_page(unsigned long start_pfn,
 }
 
 extern int __isolate_free_page(struct page *page, unsigned int order);
+extern void __putback_isolated_page(struct page *page, unsigned int order,
+                                   int mt);
 extern void memblock_free_pages(struct page *page, unsigned long pfn,
                                        unsigned int order);
 extern void __free_pages_core(struct page *page, unsigned int order);